enable markdown in config property descriptions and warnings

ui/src/app/components/config-header/config-header.component.html

@@ -11,14 +11,14 @@
   <ion-item *ngIf="spec.description">
     <ion-label class="ion-text-wrap">
       <p><ion-text color="dark">Description</ion-text></p>
-      <p>{{ spec.description }}</p>
+      <p *ngIf="spec.description" [innerHTML]="spec.description | markdown"></p>
     </ion-label>
   </ion-item>
   <!-- warning -->
   <ion-item *ngIf="spec.changeWarning">
     <ion-label class="ion-text-wrap">
       <p><ion-text color="warning">Warning!</ion-text></p>
-      <p>{{ spec.changeWarning }}</p>
+      <p *ngIf="spec.changeWarning" [innerHTML]="spec.changeWarning | markdown"></p>
     </ion-label>
   </ion-item>
 </ion-item-group>

ui/src/app/services/api/mock-api.service.ts

@@ -847,7 +847,7 @@ const mockApiAppConfig: ReqRes.GetAppConfigRes = {
     'testnet': {
       'name': 'Testnet',
       'type': 'boolean',
-      'description': 'determines whether your node is running ontestnet or mainnet',
+      'description': '*Hello*, **Testing Markdown**. Lorem ipsum dolor si',
       'changeWarning': 'Chain will have to resync!',
       'default': false,
     },